Simple Shoulder Plane Drill (Fix Flat Turn)
Curated PGA Drill by RotarySwing.com Golf Instruction
Backswing
3 sets of 10 slow rehearsal reps
Golf club, alignment stick (optional)
Beginner
Why This Drill Works (Kinetic Mechanics)
The shoulders must always rotate perpendicular to the spine angle to maintain proper posture and the swing plane. A flat turn (shoulders parallel to the ground) destabilizes the spine and forces the club out of position, requiring timing-dependent compensations.
How to Perform the Drill
Follow these step-by-step instructions. Rehearse slowly to build proper motor patterns before adding full swing speed.
- 1
Step 1
Place a golf club across your chest, resting on your shoulder sockets (butt end on the left shoulder, sticking out).
- 2
Step 2
Backswing Check: The club should point down toward the ground, slightly outside the ball, not parallel to the ground.
- 3
Step 3
Visualize the 'T': Maintain the 'T' shape formed by your spine and shoulders; your shoulders must rotate perpendicular to the spine angle.
- 4
Step 4
Feel: Focus on the sensation of your left shoulder pointing down toward the ground.
- 5
Step 5
Use a mirror to visually confirm the perpendicular rotation.
What Good Feels Like
Focus on smooth tempo and maintaining body connection through impact. Your body and club should move as a single synchronized unit.
Common Mistake to Avoid
Rushing transition before completing backswing or lunging upper body forward towards ball at impact. Keep movement controlled.



